Clinical performance of screw-retained and cemented implant-supported zirconia single crowns: 36-month results

Cacaci, Claudio; Cantner, Friederike; Mücke, Thomas; Randelzhofer, Peter; Hajtó, Jan; Beuer, Florian

doi:10.1007/s00784-016-1982-1

Cited by 21 publications

(18 citation statements)

References 35 publications

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“…The GCC group (conventional cemented prostheses) suffered two biological complications (peri-implantitis) and two decementations. These findings concur with the literature, which reports that cemented restorations have been associated with higher rates of biological complications such as peri-implant inflammation, perhaps as a result of excess cement remnants [20,21,25]. Screw-retained prostheses are associated with higher rates of mechanical complications [22][23][24][25], as seen in the present trial with four cases of screw loosening and two of chipping in the GS group.…”

Section: Discussionsupporting

confidence: 92%

“…Other possible complications that may affect implant-supported restorations are either mechanical or biological. While cemented restorations may present more severe biological complications (peri-implant inflammation) as a consequence of remnants of excess cement [20,21], screw-retained restorations suffer less serious problems, as these are likely to be technical/mechanical such as screw loosening/fracture or chipping [22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

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Influence of Biologically Oriented Preparation Technique on Peri-Implant Tissues; Prospective Randomized Clinical Trial with Three-Year Follow-Up. Part II: Soft Tissues

Agustín-Panadero

Bustamante-Hernández

Labaig-Rueda

et al. 2019

JCM

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Purpose: The objective of this prospective randomized clinical trial (RCT) was to analyze and compare the clinical behavior of three types of prosthesis supported by single implants in the posterior region after three years of functional loading. Materials and methods: Seventy-five implants were divided into three groups according to the type of prosthetic restoration: screw-retained crown (group GS); cemented crown without finishing line (biologically oriented preparation technique) (group GBOPT); and conventional cemented crown with finishing line (group GCC). After three years in function, clinical parameters (presence of keratinized mucosa, probing depths, bleeding on probing, and radiographic bone loss) were compared between the three experimental groups. The possible correlation between soft tissue clinical parameters and bone loss was also analyzed. Results: Statistical analysis found significant differences in clinical parameters between the different types of crown, with the cemented restoration without finishing line (BOPT) presenting fewer complications and better peri-implant health outcomes including: significantly different KMW data (mm), with significant differences between groups GBOPT and GCC (p < 0.001, Kruskal–Wallis test), with GBOPT obtaining larger quantities of keratinized mucosa (KM); statistically significant differences in probing depth (PD) values between groups GBOPT and GCC (p = 0.010, Kruskal–Wallis test); significant differences in bleeding on probing (BOP) between groups GBOPT and GCC (p = 0.018, Chi2 test) in favor of GBOPT. Conclusions: Soft tissue behavior around implants is related to the type of prosthetic restoration used, with cemented prostheses with BOPT presenting better peri-implant soft tissue behavior.

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Influence of Biologically Oriented Preparation Technique on Peri-Implant Tissues; Prospective Randomized Clinical Trial with Three-Year Follow-Up. Part II: Soft Tissues

Agustín-Panadero

Bustamante-Hernández

Labaig-Rueda

et al. 2019

JCM

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“…Cacaci and colleagues determined the clinical outcome of an alternative veneering technique [24]. This technique consisted of pressed veneer caps made from lithium disilicate fused to zirconia substructures for the production of single implant-supported posterior crowns.…”

Section: Patient-reported Outcome (Vas)mentioning

confidence: 99%

All-ceramic, bi-layered crowns supported by zirconia implants: Three-year results of a prospective multicenter study

Spies

Balmer

Jung

et al. 2017

Journal of Dentistry

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OBJECTIVES: To determine the clinical and patient-reported outcomes of bi-layered, allceramic posterior single crowns (SCs) supported by zirconia implants in an uncontrolled, prospective, multicenter study. METHODS: In two centers, 60 patients received 71 one-piece zirconia oral implants to be restored with either SCs (n=49) or three-unit fixed dental prostheses (n=11). Of these patients, 45 implants were restored with all-ceramic, zirconia-based posterior SCs (one per patient). Survival rates of implants and reconstructions were assessed, and technical success was evaluated according to modified U.S. Public Health Service (USPHS) criteria. Furthermore, patient-reported outcome measures (PROMs) were assessed by applying visual analog scales (VAS). Kaplan-Meier (KM) plots and log-rank tests were used for success/survival analyses. The Wilcoxon matched-pairs signed-rank test was used to evaluate time effects on response variables (PROMs, USPHS criteria). RESULTS: Forty patients with 40 SCs could be evaluated after 36.7±1.2months. No SC was replaced, resulting in 100% survival. The KM success estimate was 87.5% (two chippings, one restoration margin, and one contour were rated Charlie). In general, the incidence of chipping (p=.0005) and occlusal roughness (p=.0003) was frequent. Compared with the pre-treatment patient surveys (67-93%), all surveys at prosthetic delivery except for speech (p=.139) showed significantly improved VAS scores (81-94%; p<.0001). Thereafter, no decrease in satisfaction could be observed over time until the 3-year follow-up (86-93%; p.390). CONCLUSION: Veneered, zirconia-based SCs supported by zirconia implants satisfied patients' needs highly. However, significant incidence of chipping and roughness of the veneering ceramic may compromise the clinical longterm outcome for this indication. CLINICAL SIGNIFICANCE: Posterior, zirconia-based SCs supported by zirconia oral implants entirely survived the follow-up period of 3 years, but two major chippings, one a significant marginal opening and one pronounced over-contouring, resulted in a reduced KM success estimate of 87.5% after 36 months of observation. Spies, Benedikt C; Balmer, Marc; Jung, Ronald E; Sailer, Irena; Vach, Kirstin; Kohal, Ralf-Joachim (2017 AbstractObjectives: To determine the clinical and patient-reported outcomes of bi-layered, all-ceramic posterior single crowns (SCs) supported by zirconia implants in an uncontrolled, prospective, multicenter study.Methods: In two centers, 60 patients received 71 one-piece zirconia oral implants to be restored with either SCs (n = 49) or three-unit fixed dental prostheses (n = 11). Of these patients, 45 implants were restored with all-ceramic, zirconia-based posterior SCs (one per patient). Survival rates of implants and reconstructions were assessed, and technical success was evaluated according to modified U.S. Public Health Service (USPHS) criteria.Furthermore, patient-reported outcome measures (PROMs) were assessed by applying visual analog scales (VAS). Kaplan-Meier (KM) ...

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“…Each patient received 16 -20 μSv per exposer and a total of 80-100 μSv for all exposers including the preoperative examination which is very low in comparison to the annual minimum radiation dose for the general public 1mSv/y (1mSv = 1000 μSv) (14,15) Also all the patient used lead collar for thyroid protection during all exposers and all the exposers were performed over a period of 9 months including pre-operative radiographic examination. Implant clinical evaluation: assess Presence of pain, gingival condition around the implant using Modified sulcus bleeding index (MSBI) (16).…”

Section: Methods Ipreoperative Phasementioning

confidence: 99%

Evaluation of Autogenous Fresh Demineralized Tooth Graft Prepared at Chairside for Dental Implant (Clinical and Histological Study)

El-Said

Sharara

Melek

et al. 2017

Alexandria Dental Journal

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INTRODUCTION:Although, the chemical composition of dentin is similar to bone, extracted teeth are still considered a clinical waste and therefore being discarded. With successful extraction of growth factors and bone morphogenic proteins (BMPs) from mammalian teeth, many researchers have supported development of a bone substitute using tooth-derived substances. OBJECTIVES: To evaluate clinical, radiological and histological efficiency of autogenous fresh demineralized tooth (AFDT) graft prepared at the chairside for alveolar bone grafting in fresh extracted sockets for dental implant surgery MATERIALS AND METHODS: Ten patients requiring tooth extraction and alveolar bone regeneration for dental implant placement were included in the study. Within 45 minutes the extracted teeth were mechanicaly prepared, grinded, sieved, defatted, demineralized and sterilized. In the same setting, the graft material was used to reconstruct defects at the extraction. After 3 months of uninterrupted healing at time of implant placement bone samples were collected for histological analysis. CBCT were taken preoperative, 3months after grafting and 3 and 6 months after implant placement. RESULTS: Histologically the osteoconductive, Osteoinductive and Biodegradation of (AFDT) graft was evident. Clinically 100 % success rate of implants was achieved, with no adverse tissue reaction. CBCT have shown increase of bone density at the graft site and stability of marginal bone level around implants. CONCLUSIONS: (AFDT) graft should be considered as an option given its autogenous origin and favorable clinical, radiographical and histological outcomes when teeth extraction is necessary.

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Clinical performance of screw-retained and cemented implant-supported zirconia single crowns: 36-month results

Abstract: Implant-supported zirconia crowns with a sintered veneering cap demonstrated good clinical performance. The type of retention had no influence on technical complications.

Cited by 21 publications

References 35 publications

Influence of Biologically Oriented Preparation Technique on Peri-Implant Tissues; Prospective Randomized Clinical Trial with Three-Year Follow-Up. Part II: Soft Tissues

Influence of Biologically Oriented Preparation Technique on Peri-Implant Tissues; Prospective Randomized Clinical Trial with Three-Year Follow-Up. Part II: Soft Tissues

All-ceramic, bi-layered crowns supported by zirconia implants: Three-year results of a prospective multicenter study

Evaluation of Autogenous Fresh Demineralized Tooth Graft Prepared at Chairside for Dental Implant (Clinical and Histological Study)

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